County ProfileMN
Washington County
Population: 267,568 · 14 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
267,568
People
Median age
39.8
Housing
Total households
105,577
Income
Median household income
$115,345
Housing
Total housing units
109,307
Employment
Employment rate
65.9%
Education
Bachelor’s degree or higher
49.1%
Healthcare
Insured population
96.5%
County details
Local time 02:15:44(CT)| Name | Washington |
|---|---|
| Total ZIP codes | 14total |
| ZIP codes (by type) | 12 Standard2 PO Box |
| Area code | 651 |
| Timezone | Central Time (CT) |
| Coordinates | 45.037929, -92.890117 |
| Land area | 384.8 sq miles(996.5 km²) |
Map of Washington county, Minnesota with ZIP codes
Cities and Communities in Washington County
Compare the largest cities in Washington County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Cottage Grove | 38,839 | $120,791 | 1ZIPs |
| Forest Lake | 20,611 | $92,944 | 1ZIPs |
| Stillwater | 19,394 | $105,853 | 2ZIPs |
| Hugo | 15,766 | $116,228 | 1ZIPs |
| Lake Elmo | 11,335 | $153,669 | 1ZIPs |
| Saint Paul Park | 5,544 | $100,642 | 1ZIPs |
| Bayport | 4,024 | $125,893 | 1ZIPs |
| Scandia | 3,984 | $101,953 | 1ZIPs |
| Newport | 3,797 | $71,979 | 1ZIPs |
| Afton | 2,955 | $133,305 | 1ZIPs |
| Lakeland | 1,710 | $100,132 | 1ZIPs |
| Marine on Saint Croix | 664 | $126,250 | 1ZIPs |
| Willernie | 515 | $85,531 | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Washington County
Review the most populated postal areas across Washington County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 55016 | Cottage Grove | $120,715 | 38,427 |
| 55082 | Stillwater | $115,040 | 36,441 |
| 55025 | Forest Lake | $98,382 | 25,784 |
| 55038 | Hugo | $130,931 | 23,735 |
| 55042 | Lake Elmo | $154,341 | 12,044 |
| 55071 | Saint Paul Park | $100,798 | 5,827 |
| 55003 | Bayport | $125,893 | 4,024 |
| 55055 | Newport | $71,979 | 3,797 |
| 55073 | Scandia | $128,723 | 3,532 |
| 55043 | Lakeland | $102,966 | 3,459 |
| 55001 | Afton | $133,581 | 2,995 |
| 55047 | Marine on Saint Croix | $107,361 | 2,491 |
| 55090 | Willernie | $85,119 | 450 |
| 55083 | Stillwater | — | — |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS